Ethernet is industry standard for computer networking, however back in 1970s IBM introduced a competing technology called Token Ring.

While Token Ring has all but faded from mainstream, some hardcore IBM'ers still use it.

If you're going to be working in such an environment, you'll need a PC Card to connect to network.

Extra 4: Foreign power kit

If you travel abroad, you're bound to run into a wide variety of power schemes - power schemes that aren't compatible with your laptop.

When you're away from homeland, you'll need some sort of adapter/converter if you want to plug into a local wall outlet.

These are relatively inexpensive and can be easily found online.

Copyright (c) 2004 HowToBuyALaptop.com

The author, computer journalist John San Filippo, has created the definitive guide for buying a laptop computer and mobile accessories. Visit the site at: http://HowToBuyALaptop.com

This decision has been made as a result of an option on many phones called "flight mode" which disables radio portion of phone. As a result, passenger are allowed to use their phones much as they do their game boys, computers and other such devices.

In fact, in a few years, many of world's airlines will be offering cellular service and wireless internet on their flights. So those that worry about cell phone use on planes, may need to get over it in rather short order.

And, just like other places in world, we all will be putting up with people sharing intimate details of their lives with rest of us. Progress marches on for better or for worse.

About The Author

Arnie Jacobsen is an educator, entreprenuer, and freelance writer in the field of consumer products relating to cell phones and service and cellular accessories.